Rake-arm for harvesters



(No Model.)

0. KROMER.

RAKE ARM FOR HARVESTERS. No. 278,023. Patented May 22,1883.

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OTTO 'KROMER, OF

SANDUSKY, 015110..

RAKE-ARM FOR HARVESTERS.

SPECIFICATION forming part of Letters Patent No. 278,023, dated May 22, 1883.

' Application filed January 22, 1883. (No model.)

To all whom it may concern Be it known that I, Or'ro KROMER, of Sandusky,in the county of Erie and State of Ohio, have invented new and useful Improvements in Rake-Arms for Harvesters; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form a part of this specification.

The nature of this invention relates to certain new and useful improvements in the construction of rake-arms for harvesters of that class wherein the grain is cut, deposited upon the platform, and raked therefrom in gavels of any size at the will of the operator.

The invention consists of the peculiar construction and combination of parts hereinafter more fully described and claimed.

Figure l is an elevation of a section of the rake-arm, two-part clutch, and winged thim ble, the latter being broken away to show'the arrangement of the spring on the arm. Fig. 2 is a section showing the arrangement of the rake head and arms.

This invention is a modification of the device for a similar purpose shown in Patent No. 225,064, dated March 2, 1880, and issued to myself and Frank Rinklefl'.

In the accompanying drawings, which form a part of this specification, A represents the rake-arm. There are four of these arms em ployed, which are pivotally secured to the revolving rake-head B, which is provided with four pairs of cars, U, each pair being at right angles to the pair on either side, and between each pair of these, lugs there is pivotally secured the rake-arm A, and to each of these arms there is secured a rake,W, in the following manner: Upon each of these arms there is a clutch formed of two parts, F and F, the former of which is rigidlysecnred to the arm, while the latter is sleeved thereon, and has secured to it a thimble, U, which is provided with the wings or flanges D, to which the rakes WV are fastened. Within the thimble C an extension, A, of the arm--A is smaller in diameter than the main portion thereof, to furnish room for the action of the coiled spring E, which is therein concealed, one end of such spring finding a point of resistance at 0, against the shoulder upon the arm,while the other impinges against the part 13" of the clutch, so

that when the parts of the clutch are disengaged, as described in the aforesaid Letters Patent, and the pressure relieved by which such disengagement is bad, the spring will cause the parts of the clutch to re-engage.

The operation of the parts is precisely the same as that described in the aforesaid Letters Patent, of which the device herein described is a simple modification, whereby the spring is concealed within the thimble and prevented from accidental displacement, or from being injured by the actionof the elements.

I am aware of Patent No. '248,736,-which shows a spring partially concealed within a thimble, and make no claim thereto; nor do I claim, broadly, the use of a sleeve to conceal a spring, but limit myself to the construction shown and claimed.

What I claim as my invention is- In a rake-arm attachment for harvesters, the

combination of the collar on, spring E, rake-arm A, having the half-clutch F, and the extension A, with the sleeve 6, entirely concealing the spring and forming a bearing for the collar a, and provided with the opposite part of the clutch and means for receiving and holding the rake, all substantially as described.

or'ro KROMER.

Witnesses J. ERCKENER, O. MILLER. 

